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Blackstone Labs Metha-Quad Extreme

Blackstone Labs Metha-Quad Extreme

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Blackstone Labs Metha-Quad Extreme is the most potent prohormone stack ever created combining the power of 1-Andro, 4-Andro, Androsterone, and Arimistane into ONE product.

Prohormones are perhaps the single most powerful, and legal, anabolic compounds on the market. Just one cycle on a single prohormone can increase your size and strength greater than all of your previous years of training combined!


Now, imagine the power of a single prohormone cycle and QUADRUPLE it!


That’s what you get from Metha-Quad Extreme by Blackstone Labs.


Metha-Quad Extreme is quite simply the most powerful prohormone stack ever created. It combines the muscle-building abilities of the 3 most potent prohormones legally sold today with the estrogen-combatting properties of Arimistane, the ultimate aromatase inhibitor.


Bulking, cutting, or recomping, Metha-Quad Extreme is ideal for any goal, and will significantly enhance your ability to burn fat, build muscle, and sculpt the ultimate male physique. Blackstone Labs has delivered the product you’ve always wanted, even if you didn’t know what you were looking for!


Metha-Quad Extreme Benefits


  • Increased muscle mass

  • Enhances libido

  • Greater testosterone production

  • Superior bioavailability and absorption

  • More strength and power

  • Increased aggression

  • Excellent for recomping

  • Creates dry, hard physique

  • No bloating or unsightly water retention

  • Greater vascularity


Metha-Quad Extreme Ingredients


Androsterone (150mg)


Androsterone, a.k.a 3α-hydroxy-5α-androstan-17-one, is a metabolite of testosterone and dihydrotestosterone (DHT). It’s mildly androgenic and approximately 1/7th the strength of actual testosterone. Additionally, androsterone also can convert directly to dihydrotestosterone (DHT) via two enzymes, 3α-hydroxysteroid dehydrogenase and 17β-hydroxysteroid dehydrogenase. This significantly enhances the muscle-building capabilities of Androsterone, setting the stage for the most epic mass-gaining prohormone stack ever in Metha-Quad Extreme.

1-Andro (50mg)


Suffice it to say 1-Andro may be the most potent single prohormone on the market today. It’s incredibly androgenic (and anabolic), with little to no estrogen conversion in the body. 1-Andro can be thought of as a “pre” prohormone, as in the body, 1-Andro goes through a two step conversion, converting first to 1-Androstenediol and then 1-Testosterone, the target anabolic.

When you want size and strength gains, 1-Andro is about the best the prohormone world has to offer. Clinical research has shown that supplementing with 1-Andro can yield a 10 pound muscle increase after only 4 weeks of use! That same study also found significant strength gains is the test subjects as well!


4-Andro (50mg)


Similar to 1-Andro, 4-Andro also undergoes a multi-step conversion in the body, ultimately converting to actual testosterone, via the 3-beta-hydroxysteroid-dehydrogenase enzyme. 4-Andro provides your “testosterone base” in this prohormone stack, resulting in significantly greater testosterone production for greater muscle gains and masculinity!

4-Andro does easily convert to estrogen though, which is why Metha-Quad Extreme includes one of the most powerful aromatase inhibitors on the market, which is...

Arimistane (50mg)


Due to the estrogenic effects of 4-Andro, Blackstone Labs has included a potent 50mg dose of the leading suicidal aromatase inhibitor, Arimistane. AIs such as Arimistane prevent the aromatase enzyme from converting your precious testosterone into unsightly estrogen.

On top of that, Arimistane assists with estrogen and cortisol regulation in the body. As you’re probably aware excess levels of either estrogen or cortisol can severely hinder your ability to build muscle and burn fat. Fortunately, arimistane puts a choke hold on these two hormones ensuring maximum muscle gains during your time on Metha-Quad Extreme.




As a dietary supplement, consume 1 tablet within 1 hour of training. Do not exceed 2 tablets daily.